1,724,486 research outputs found
Przystosowywanie cyklotronu AIC-144 do zastosowań medycznych Część 1. Optymalizacja nastaw
No full textThe AIC-144 cyclotron at the Institute of Nuclear Physics has been upgraded to produce the beams, which could be applied for proton radiotherapy of eye melanoma. Acceleration, extraction and transport of the 56 MeV proton is described
Eksploatacja stanowiska r adioterapi i protonow ej nowotworów oka w IFJ PAN w latach 2013-2015
No full textProton radiotherapy is an effective treatment modality for ocular cancer patients with choroidal melanoma. In 2011 a proton radiotherapy facility at the Institute of Nuclear Physics Polish Academy of Sciences was commissioned and went into clinical operation. By the end of the year 2015, a total of 128 ocular patients of the University Hospital in Kraków were irradiated at this facility, of whom 113 were treated under contract from the National Health Fund
Physics in hot pursuit
No full textWe are constantly bombarded with streams of information. Th is also applies
to new facts in the fi eld of science - their number is growing rapidly. We have
prepared this brochure especially for you in order to show you, in a nutshell, several
interesting results of the work of our colleagues from the Institute of Nuclear
Physics, Polish Academy of Sciences. You will fi nd that science, in this case physics, is not only attractive but easily becomes a fascinating adventure. What’s more, it can change our lives in a qualitative way, as evidenced by, for example, the spread of the Internet. Th e World Wide Web (www) was invented to meet the need to communicate
and share information within the physicists’ community. Such an interesting and modern science knows no geographic or interpersonal boundaries, and we also practice it with great success in Poland, in particular at the Henryk Niewodniczański Institute of Nuclear Physics, the largest scientific institute of the Polish Academy of Sciences. At IFJ PAN, we pride ourselves on the fact that, sometimes working in large international research teams, we are also well known as part of the local and national community.
Many visitors to our websites very often read popularizing reports, which we have been systematically publishing since 2015, and which then go to the EurekAlert! website, run by the American Association for the Development of Science (AAAS).
In order that you will not miss any news about modern physics, dear Reader, we invite you to browse through the 2016–2018 reports
Analiza ograniczeń systemu Proteus 235 wynikających z zastosowanej technologii akceleracji oraz diagnostyki wiązki protonów, w zastosowaniach do eksperymentów fizyki jądrowej
No full textThe purpose of the report is to introduce work necessary to determine impact of selected cyclotron Proteus C-230 parameters affecting workflow of Proteus 235 Proton Therapy System, which is located inside Institute of Nuclear Physics in Cracow. In particular, the properties of produced ion beam such as the stability and cross-section shape of the beam were analyzed. Gathered data from conducted research will be utilized primarily during beam optics re-work for nuclear physics experiments and also during daily operation of the cyclotron
Przystosowywanie cyklotronu AIC-144 do protonowej radioterapii oka część 6.Wpływ stabilności temperatury cyklotronu AIC-144 na stabilność natężenia wyprowadzanej wiązki protonów
No full textThe cyclotron AIC – 144 at the Institute of Nuclear Physics Polish Academy of Sciences (IFJ PAN) in Krakow has been dedicated to the proton therapy of the protons eye tumor. In this application, the essential parameter is the stability of the proton beam current. The paper describes the relationship between the stability of the proton beam current and temperature of the cooling water supplied to various cyclotron parts which shape the beam. We noticed the dependence on the temperature itself and on the temperature gradient. Generally, better stability of the proton beam current, faster stabilization of the set beam parameters, better reproducibility, as well as less energy consumption are ensured at lower temperatures
Operation regime of AIC-144 cyclotron for delivering 60 mev proton beam to the radiotherapy of eye melanoma
No full textThe latest computational and experimental results concerning 60 MeV proton beam acceleration and extraction in AIC-144 cyclotron of the Institute of Nuclear Physics (Krakow, Poland) are being considered. Improvement of RF system reliability at dee voltage of 60 kV and frequency of 26.26 MHz as well as precise shaping of the cyclotron magnetic field made it possible to accelerate the proton beam up to 60.5 MeV and to provide its extraction with overall efficiency ~35%. The beam is planned to be used for the long-term radiotherapy of eye melanoma in the year 2013
Dosimetric properties of the TLD European Cards with high sensitive MCP-7 (7LiF:Mg,Cu,P) thermoluminescence detectors for personal dosimetry
No full textDosimetric properties of Harshaw compatible cards equipped with two thermoluminescence MCP-7 (LiF:Mg,Cu,P) detectors were investigated at the accredited Laboratory of Individual and Environmental Dosimetry (Polish acronym LADIS) at the Institute of Nuclear Physics, Krakow. Dose detection threshold, dose sensitivity, dose linearity, residual signal, fading, sensitivity to thermal neutrons, sensitivity to ambient light, and the influence of environmental conditions were evaluated. All investigated dosimetric properties were found to be within the limits defined by IEC document 1066 “Thermoluminescence Dosimetry Systems for Personal and Environmental Standard”
Nano-scale interface modification of the Co/Cu system: metallic surface modifiers in the growth of smooth thin films
No full textThis review is a collection of twelve original papers concerning
growth and interface modification in the Co/Cu system. Most of this
research has been carried out in the Laboratory of Surface and Thin Film
Physics at the Institute of Nuclear Physics. The Laboratory was created by
the author of this review in 1996 in strong collaboration with the Institute
of Nuclear Physics Wilhelms-Universität in Münster, Germany and the
Institute of Applied Physics Ukrainian Academy of Science in Sumy,
Ukraine. The big international team worked under the leadership of Dr
Marta Marszałek, initially developing a multicomponent ultrahigh vacuum
setup for thin film preparation and analysis, and next accompanying her
in studies of the structural, magnetic and magnetotransport properties of
Co/Cu multilayers.
Systems that exhibit giant magnetoresistance effect have been
receiving intensive attentions over recent years since they are possible
candidates for applications in ultrahigh-density data storage and
magnetoelectronic devices. The focus of this research is the growth of
magnetic Co/Cu multilayers modified by using metallic surface modifiers
called surfactants. The different approaches have been used. Surfactant
metals were introduced once into growth process as a buffer layer or they
were deposited sequentially at each interface of Co/Cu multilayers. The
growth was performed by molecular beam epitaxy technique which allows
to tailor carefully deposition conditions. The results showed that two
approaches gave different results. Surfactant buffer layers resulted in
loss of layered character of multilayers being a kind of an intermediate
cluster-like phase combined with a layered area. Small amount of
surfactants introduced at each interface lead to well-ordered structures
with small roughness and smoother interfaces than in the case of pure
Co/Cu multilayers. Despite of the differences, in both cases the
improvement of magnetoresistance value was observed.
The atomic scale study of Co growth on Cu(111) surface in the
presence of In surfactant demonstrated that surfactant facilitates layerby-
layer growth of cobalt on Cu(111). The surfactant effect of indium is
connected to a reduction in the cobalt surface diffusion rate (with
increased energy barrier) and therefore lowered ratio of Ehrlich-
Schwoebel barrier to surface diffusion barrier
Professor Andrzej Budzanowski, Director General, Henryk Niewodniczanski Institute of Nuclear Physics (HNINP) Poland. Dr. Grzegorz Polok, Deputy Director
No full textAndrzej Budzanowski, Director-General of the Cracow Institute of Nuclear Physics (HNINP) and Lyn Evans, LHC Project Leader, signing the collaboration agreement. In the background, from leftto right : Grzegorz Polok, Deputy Director-General of the Cracow Institute of Nuclear Physics, Blazej Skoczen, in charge of the LHC cryomagnet interconnections, Claude Détraz, Director for Fixed Target and Future Programmes, Alain Poncet, AT/CRI Group Leader
Visit of Sayabek Sakhiyev, Director of the Institute of Nuclear Physics Republic of Kazakhstan
No full textVisit by Dr Sayabek Sakhiyev Director of the Institute of Nuclear Physics Republic of Kazakhstan on the occasion of the signature of the Addendum No. 11 to the Memorandum of Understanding for the NA62 Experiment
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